Because, yeah, sure, why shouldn’t this exist? Right? Underwear for your water bottle? That’s, like, totally normal. And yes, it sure looks like it’s a real product that you can spend $2 to own. For that amount you apparently get 7 different styles, which is about 6 more styles than your average guy has.
We think it might be an attempt to keep your hand dry in the case of a cold bottle condensing water on its side. But still: underwear for your water bottle.
What a time to be alive!